@article{10_21136_AM_1980_103877,
     author = {Vit\'oria, Jos\'e},
     title = {Latent roots of lambda-matrices, {Kronecker} sums and matricial norms},
     journal = {Applications of Mathematics},
     pages = {395--399},
     publisher = {mathdoc},
     volume = {25},
     number = {6},
     year = {1980},
     doi = {10.21136/AM.1980.103877},
     mrnumber = {0596845},
     zbl = {0469.15005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/AM.1980.103877/}
}